You're just finished taking off your clothes as you and your sister/shapeshifting girlfriend and interrupted by the doorbell.
You and your girlfriend look each other in the eyes with surprise, but, acting quickly, she grabs you, pulls you closer and whispers "I've got this" before kissing you and throwing you on your parent's bed.
Your vision fades as you black out for a few seconds, waking up covered in blonde hair once again. You sit up on the bed and look around, your girlfriend nowhere to be found- so you rush to the living room to open the door for whoever was ringing the bell.
Yet, when you reach the living room you can see your mother and your stepfather talking next to the house door.
"Well, Reggie, me and Ashley were just living, she's late for her practice so I'm driving her there," she turns to you and winks, "isn't that right, sweetie?"
Starting to realize what was going on you quickly looked down and could see your sister's breasts, just minutes ago worn by your girlfriend, now attached to your chest, barely contained within the slutty cheerleader outfit. But if you were here as your sister, is that your girlfriend inside your mothers body?
As you wonder you notice your stepfather looking at you suspiciously, so you hurry and answer your "mother", "Like, totes", you answer with a bitchy tone to your now high-pitched voice. Your choice of words shocks you, and you almost send a hand to your mouth, but you manage to control yourself.
"Well, I'll talk to you later then, Charlotte", your father answers as he hands your "mother" the car keys, then turns to you and says "good luck at practice, Ash", suspicion no longer visible in his eyes.
You and your girlfriend take the opportunity and leave the house, heading for the car parked in the driveway.
As you get inside, you grasp the dashboard with your new delicate hands, now tipped with black nails, as if to check this is all actually happening, "O-M-G. You, like, mind explaining to me what the fuck just happened?!"
"Well, sweety, if you hadn't notice you are now inhabiting the body of your sister Ashley, which I was wearing before our latest transformation, and me, your mother's body, which your were wearing- adding some clothing, of course.", your girlfriend/mother explains calmly.
"Well, yeah! I can, like, see that!", you answer angrily in your sisters nasal and bitchy voice, although in comes out more bratty than anything else you had intended, "But... why my sis? and why am I totes talking like that bitch?"
"As you could see during our... intercourse a few moments ago, when I transform someone, being either myself or somebody else, they inherit their body's mannerisms and speech patterns. I do not know why this happens, but it always does." she told you with your mother's lower and breathy voice, "As to why I am now your mother and you your sister- well... I panicked. I guessed I would handle the situation more naturally as I have more experience in being other people, so I took the 'leading role' from you and gave you mine. I'm sorry, but at least now we're out of there."
You massage your/your sister's temple with a manicured hand, hoping that this really was that hard to follow and that you hadn't also inherited your slutty sister's intelligence. You look up to your mother's amber eyes.
"So... Could you, like, change us back now?"